#include<bits/stdc++.h>
#define int long long
using namespace std;
const int N = 300010;
vector <int> g[N];
vector <int> raizes;
int val[N];
int pai[N];
int dp[N];
int dfs(int v, int p){
int con = 0;
for(auto x : g[v]){
if(x == p) continue;
dfs(x, v);
con++;
}
if(con == 0)
return dp[v] = max(0LL, val[v]);
int vl = val[v];
for(auto x : g[v]){
if(x == p) continue;
vl += dp[x];
}
dp[v] = max(vl, 0LL);
return dp[v];
}
stack <pair <int, int>> s[N];
int32_t main(){
srand(time(0));
int n, c;
cin >> n >> c;
if(c >= 1e17){
for(int i = 1;i <= n;i++){
int p;
cin >> val[i] >> p;
if(p == 0) raizes.push_back(i);
else g[p].push_back(i);
}
int res = 0;
for(auto x : raizes){
res += dfs(x, x);
}
cout << res << '\n';
return 0;
}
vector<int> aux;
int con = 0;
for(int i = 1;i <= n;i++){
cin >> val[i] >> pai[i];
if(pai[i] == 0){
if(!aux.empty()){
reverse(aux.begin(), aux.end());
vector <pair <int, int>> res;
int ac = 0;
int mnac = 0;
while(!aux.empty()){
// cout << aux.back() << ' ' << ac << '\n';
if(aux.back() + ac >= 0){
res.push_back({aux.back()+ac, mnac});
ac = 0;
mnac = 0;
}
else{
ac += aux.back();
mnac = min(mnac, ac);
}
aux.pop_back();
}
reverse(res.begin(), res.end());
for(auto x : res){
//cout << x.first << ' ' << x.second << '\n';
s[con].push(x);
}
con++;
}
}
//cout << val[i] << ' ';
aux.push_back(val[i]);
}
if(!aux.empty()){
reverse(aux.begin(), aux.end());
vector <pair <int, int>> res;
int ac = 0;
int mnac = 0;
while(!aux.empty()){
//cout << aux.back() << ' ';
if(aux.back() + ac >= 0){
//cout << aux.back() << ' ';
res.push_back({aux.back()+ac, mnac});
ac = 0;
mnac = 0;
}
else{
ac += aux.back();
mnac = min(mnac, ac);
}
aux.pop_back();
}
reverse(res.begin(), res.end());
for(auto x : res){
// cout << x.first << ' ' << x.second << '\n';
s[con].push(x);
}
con++;
}
priority_queue <array <int, 3>> pq;
for(int i = 0;i < con;i++){
if(s[i].empty()) continue;
pq.push({s[i].top().second, s[i].top().first, i});
}
int res = 0;
while(!pq.empty()){
auto [mnac, valtot, i] = pq.top();
pq.pop();
// cout << mnac << ' ';
if(c + mnac < 0) break;
res += valtot;
c += valtot;
s[i].pop();
if(s[i].empty()) continue;
pq.push({s[i].top().second, s[i].top().first, i});
}
cout << res << '\n';
return 0;
}
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
268 ms |
224596 KB |
Output is correct |
2 |
Correct |
239 ms |
223828 KB |
Output is correct |
3 |
Correct |
232 ms |
223220 KB |
Output is correct |
4 |
Correct |
232 ms |
229300 KB |
Output is correct |
5 |
Correct |
230 ms |
232272 KB |
Output is correct |
6 |
Correct |
181 ms |
221264 KB |
Output is correct |
7 |
Correct |
241 ms |
223572 KB |
Output is correct |
8 |
Correct |
233 ms |
223228 KB |
Output is correct |
9 |
Correct |
204 ms |
231248 KB |
Output is correct |
10 |
Correct |
215 ms |
232516 KB |
Output is correct |
11 |
Correct |
282 ms |
223828 KB |
Output is correct |
12 |
Correct |
217 ms |
222744 KB |
Output is correct |
13 |
Correct |
275 ms |
223972 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
91 ms |
216400 KB |
Output is correct |
2 |
Correct |
89 ms |
216404 KB |
Output is correct |
3 |
Correct |
86 ms |
216400 KB |
Output is correct |
4 |
Correct |
83 ms |
216400 KB |
Output is correct |
5 |
Correct |
82 ms |
216396 KB |
Output is correct |
6 |
Correct |
92 ms |
216340 KB |
Output is correct |
7 |
Correct |
86 ms |
216404 KB |
Output is correct |
8 |
Correct |
93 ms |
216464 KB |
Output is correct |
9 |
Correct |
95 ms |
216400 KB |
Output is correct |
10 |
Correct |
85 ms |
216404 KB |
Output is correct |
11 |
Correct |
103 ms |
216400 KB |
Output is correct |
12 |
Correct |
87 ms |
216388 KB |
Output is correct |
13 |
Correct |
93 ms |
216404 KB |
Output is correct |
14 |
Correct |
88 ms |
216476 KB |
Output is correct |
15 |
Correct |
93 ms |
216344 KB |
Output is correct |
16 |
Correct |
94 ms |
216404 KB |
Output is correct |
17 |
Correct |
98 ms |
216512 KB |
Output is correct |
18 |
Correct |
87 ms |
216400 KB |
Output is correct |
19 |
Correct |
94 ms |
216400 KB |
Output is correct |
20 |
Correct |
84 ms |
216400 KB |
Output is correct |
21 |
Correct |
96 ms |
216508 KB |
Output is correct |
22 |
Correct |
91 ms |
216328 KB |
Output is correct |
23 |
Correct |
77 ms |
216400 KB |
Output is correct |
24 |
Correct |
94 ms |
216404 KB |
Output is correct |
25 |
Correct |
92 ms |
216404 KB |
Output is correct |
26 |
Correct |
90 ms |
216400 KB |
Output is correct |
27 |
Correct |
90 ms |
216400 KB |
Output is correct |
28 |
Correct |
93 ms |
216400 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
91 ms |
216400 KB |
Output is correct |
2 |
Correct |
89 ms |
216404 KB |
Output is correct |
3 |
Correct |
86 ms |
216400 KB |
Output is correct |
4 |
Correct |
83 ms |
216400 KB |
Output is correct |
5 |
Correct |
82 ms |
216396 KB |
Output is correct |
6 |
Correct |
92 ms |
216340 KB |
Output is correct |
7 |
Correct |
86 ms |
216404 KB |
Output is correct |
8 |
Correct |
93 ms |
216464 KB |
Output is correct |
9 |
Correct |
95 ms |
216400 KB |
Output is correct |
10 |
Correct |
85 ms |
216404 KB |
Output is correct |
11 |
Correct |
103 ms |
216400 KB |
Output is correct |
12 |
Correct |
87 ms |
216388 KB |
Output is correct |
13 |
Correct |
93 ms |
216404 KB |
Output is correct |
14 |
Correct |
88 ms |
216476 KB |
Output is correct |
15 |
Correct |
93 ms |
216344 KB |
Output is correct |
16 |
Correct |
94 ms |
216404 KB |
Output is correct |
17 |
Correct |
98 ms |
216512 KB |
Output is correct |
18 |
Correct |
87 ms |
216400 KB |
Output is correct |
19 |
Correct |
94 ms |
216400 KB |
Output is correct |
20 |
Correct |
84 ms |
216400 KB |
Output is correct |
21 |
Correct |
96 ms |
216508 KB |
Output is correct |
22 |
Correct |
91 ms |
216328 KB |
Output is correct |
23 |
Correct |
77 ms |
216400 KB |
Output is correct |
24 |
Correct |
94 ms |
216404 KB |
Output is correct |
25 |
Correct |
92 ms |
216404 KB |
Output is correct |
26 |
Correct |
90 ms |
216400 KB |
Output is correct |
27 |
Correct |
90 ms |
216400 KB |
Output is correct |
28 |
Correct |
93 ms |
216400 KB |
Output is correct |
29 |
Correct |
211 ms |
217996 KB |
Output is correct |
30 |
Correct |
227 ms |
217316 KB |
Output is correct |
31 |
Correct |
204 ms |
223824 KB |
Output is correct |
32 |
Correct |
224 ms |
223164 KB |
Output is correct |
33 |
Correct |
219 ms |
221924 KB |
Output is correct |
34 |
Correct |
209 ms |
218756 KB |
Output is correct |
35 |
Correct |
158 ms |
217184 KB |
Output is correct |
36 |
Correct |
245 ms |
218696 KB |
Output is correct |
37 |
Correct |
246 ms |
217716 KB |
Output is correct |
38 |
Correct |
212 ms |
223028 KB |
Output is correct |
39 |
Correct |
219 ms |
220780 KB |
Output is correct |
40 |
Correct |
227 ms |
219592 KB |
Output is correct |
41 |
Correct |
215 ms |
218448 KB |
Output is correct |
42 |
Correct |
171 ms |
217932 KB |
Output is correct |
43 |
Correct |
212 ms |
217556 KB |
Output is correct |
44 |
Correct |
248 ms |
225980 KB |
Output is correct |
45 |
Correct |
207 ms |
220792 KB |
Output is correct |
46 |
Correct |
214 ms |
219204 KB |
Output is correct |
47 |
Correct |
221 ms |
218480 KB |
Output is correct |
48 |
Correct |
277 ms |
219596 KB |
Output is correct |
49 |
Correct |
235 ms |
217536 KB |
Output is correct |
50 |
Correct |
226 ms |
225804 KB |
Output is correct |
51 |
Correct |
185 ms |
218820 KB |
Output is correct |
52 |
Correct |
215 ms |
219848 KB |
Output is correct |
53 |
Correct |
175 ms |
217528 KB |
Output is correct |
54 |
Correct |
228 ms |
220608 KB |
Output is correct |
55 |
Correct |
242 ms |
217644 KB |
Output is correct |
56 |
Correct |
244 ms |
227008 KB |
Output is correct |
57 |
Correct |
216 ms |
221968 KB |
Output is correct |
58 |
Correct |
228 ms |
219848 KB |
Output is correct |
59 |
Correct |
212 ms |
218800 KB |
Output is correct |
60 |
Correct |
209 ms |
219592 KB |
Output is correct |
61 |
Correct |
209 ms |
217512 KB |
Output is correct |
62 |
Correct |
241 ms |
219780 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
91 ms |
216400 KB |
Output is correct |
2 |
Correct |
89 ms |
216404 KB |
Output is correct |
3 |
Correct |
86 ms |
216400 KB |
Output is correct |
4 |
Correct |
83 ms |
216400 KB |
Output is correct |
5 |
Correct |
82 ms |
216396 KB |
Output is correct |
6 |
Correct |
92 ms |
216340 KB |
Output is correct |
7 |
Correct |
86 ms |
216404 KB |
Output is correct |
8 |
Correct |
93 ms |
216464 KB |
Output is correct |
9 |
Correct |
95 ms |
216400 KB |
Output is correct |
10 |
Correct |
85 ms |
216404 KB |
Output is correct |
11 |
Correct |
103 ms |
216400 KB |
Output is correct |
12 |
Correct |
87 ms |
216388 KB |
Output is correct |
13 |
Correct |
93 ms |
216404 KB |
Output is correct |
14 |
Correct |
88 ms |
216476 KB |
Output is correct |
15 |
Correct |
93 ms |
216344 KB |
Output is correct |
16 |
Correct |
94 ms |
216404 KB |
Output is correct |
17 |
Correct |
98 ms |
216512 KB |
Output is correct |
18 |
Correct |
87 ms |
216400 KB |
Output is correct |
19 |
Correct |
94 ms |
216400 KB |
Output is correct |
20 |
Correct |
84 ms |
216400 KB |
Output is correct |
21 |
Correct |
96 ms |
216508 KB |
Output is correct |
22 |
Correct |
91 ms |
216328 KB |
Output is correct |
23 |
Correct |
77 ms |
216400 KB |
Output is correct |
24 |
Correct |
94 ms |
216404 KB |
Output is correct |
25 |
Correct |
92 ms |
216404 KB |
Output is correct |
26 |
Correct |
90 ms |
216400 KB |
Output is correct |
27 |
Correct |
90 ms |
216400 KB |
Output is correct |
28 |
Correct |
93 ms |
216400 KB |
Output is correct |
29 |
Incorrect |
86 ms |
216468 KB |
Output isn't correct |
30 |
Halted |
0 ms |
0 KB |
- |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
268 ms |
224596 KB |
Output is correct |
2 |
Correct |
239 ms |
223828 KB |
Output is correct |
3 |
Correct |
232 ms |
223220 KB |
Output is correct |
4 |
Correct |
232 ms |
229300 KB |
Output is correct |
5 |
Correct |
230 ms |
232272 KB |
Output is correct |
6 |
Correct |
181 ms |
221264 KB |
Output is correct |
7 |
Correct |
241 ms |
223572 KB |
Output is correct |
8 |
Correct |
233 ms |
223228 KB |
Output is correct |
9 |
Correct |
204 ms |
231248 KB |
Output is correct |
10 |
Correct |
215 ms |
232516 KB |
Output is correct |
11 |
Correct |
282 ms |
223828 KB |
Output is correct |
12 |
Correct |
217 ms |
222744 KB |
Output is correct |
13 |
Correct |
275 ms |
223972 KB |
Output is correct |
14 |
Correct |
91 ms |
216400 KB |
Output is correct |
15 |
Correct |
89 ms |
216404 KB |
Output is correct |
16 |
Correct |
86 ms |
216400 KB |
Output is correct |
17 |
Correct |
83 ms |
216400 KB |
Output is correct |
18 |
Correct |
82 ms |
216396 KB |
Output is correct |
19 |
Correct |
92 ms |
216340 KB |
Output is correct |
20 |
Correct |
86 ms |
216404 KB |
Output is correct |
21 |
Correct |
93 ms |
216464 KB |
Output is correct |
22 |
Correct |
95 ms |
216400 KB |
Output is correct |
23 |
Correct |
85 ms |
216404 KB |
Output is correct |
24 |
Correct |
103 ms |
216400 KB |
Output is correct |
25 |
Correct |
87 ms |
216388 KB |
Output is correct |
26 |
Correct |
93 ms |
216404 KB |
Output is correct |
27 |
Correct |
88 ms |
216476 KB |
Output is correct |
28 |
Correct |
93 ms |
216344 KB |
Output is correct |
29 |
Correct |
94 ms |
216404 KB |
Output is correct |
30 |
Correct |
98 ms |
216512 KB |
Output is correct |
31 |
Correct |
87 ms |
216400 KB |
Output is correct |
32 |
Correct |
94 ms |
216400 KB |
Output is correct |
33 |
Correct |
84 ms |
216400 KB |
Output is correct |
34 |
Correct |
96 ms |
216508 KB |
Output is correct |
35 |
Correct |
91 ms |
216328 KB |
Output is correct |
36 |
Correct |
77 ms |
216400 KB |
Output is correct |
37 |
Correct |
94 ms |
216404 KB |
Output is correct |
38 |
Correct |
92 ms |
216404 KB |
Output is correct |
39 |
Correct |
90 ms |
216400 KB |
Output is correct |
40 |
Correct |
90 ms |
216400 KB |
Output is correct |
41 |
Correct |
93 ms |
216400 KB |
Output is correct |
42 |
Correct |
211 ms |
217996 KB |
Output is correct |
43 |
Correct |
227 ms |
217316 KB |
Output is correct |
44 |
Correct |
204 ms |
223824 KB |
Output is correct |
45 |
Correct |
224 ms |
223164 KB |
Output is correct |
46 |
Correct |
219 ms |
221924 KB |
Output is correct |
47 |
Correct |
209 ms |
218756 KB |
Output is correct |
48 |
Correct |
158 ms |
217184 KB |
Output is correct |
49 |
Correct |
245 ms |
218696 KB |
Output is correct |
50 |
Correct |
246 ms |
217716 KB |
Output is correct |
51 |
Correct |
212 ms |
223028 KB |
Output is correct |
52 |
Correct |
219 ms |
220780 KB |
Output is correct |
53 |
Correct |
227 ms |
219592 KB |
Output is correct |
54 |
Correct |
215 ms |
218448 KB |
Output is correct |
55 |
Correct |
171 ms |
217932 KB |
Output is correct |
56 |
Correct |
212 ms |
217556 KB |
Output is correct |
57 |
Correct |
248 ms |
225980 KB |
Output is correct |
58 |
Correct |
207 ms |
220792 KB |
Output is correct |
59 |
Correct |
214 ms |
219204 KB |
Output is correct |
60 |
Correct |
221 ms |
218480 KB |
Output is correct |
61 |
Correct |
277 ms |
219596 KB |
Output is correct |
62 |
Correct |
235 ms |
217536 KB |
Output is correct |
63 |
Correct |
226 ms |
225804 KB |
Output is correct |
64 |
Correct |
185 ms |
218820 KB |
Output is correct |
65 |
Correct |
215 ms |
219848 KB |
Output is correct |
66 |
Correct |
175 ms |
217528 KB |
Output is correct |
67 |
Correct |
228 ms |
220608 KB |
Output is correct |
68 |
Correct |
242 ms |
217644 KB |
Output is correct |
69 |
Correct |
244 ms |
227008 KB |
Output is correct |
70 |
Correct |
216 ms |
221968 KB |
Output is correct |
71 |
Correct |
228 ms |
219848 KB |
Output is correct |
72 |
Correct |
212 ms |
218800 KB |
Output is correct |
73 |
Correct |
209 ms |
219592 KB |
Output is correct |
74 |
Correct |
209 ms |
217512 KB |
Output is correct |
75 |
Correct |
241 ms |
219780 KB |
Output is correct |
76 |
Incorrect |
86 ms |
216468 KB |
Output isn't correct |
77 |
Halted |
0 ms |
0 KB |
- |